COLOR TEMPERATURE CONVERSION DEVICE AND LIGHTING DEVICE USING COLOR TEMPERATURE CONVERSION DEVICE

• Main Author: KAWAKATSU AKIRA
• Format: Patent
• Language: English
• Published: 07.01.2013
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; SEMICONDUCTOR DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To lower color temperature of illumination light for irradiating by an LED module up to a predetermined color temperature by a simple structure.SOLUTION: The color temperature conversion device is installed in front of an LED module with color temperature of 4,000°K-6,000°K having a blue LED and a yellow phosphor. It has characteristics to lower light emission intensity in wavelength of 500 nm or less of the illumination light irradiated by the LED module 8, and to lower the light emission intensity in the wavelength of 515 nm-570 nm, and is equipped with a resin member 1 to convert the illumination light irradiated by the LED module 8 into the illumination light of the color temperature of 2,500°K-4,000°K.